Home / 66,436.79-91,659.77-42,576.62

Finding the Fourth Proportional to 66,436.79, 91,659.77 and 42,576.62

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Solution

The fourth proportional to 66,436.79, 91,659.77 and 42,576.62 is: 58,740.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,436.79 : 91,659.77 = 42,576.62 : x
  2. Step 2: Convert to fraction form
    66,436.79/91,659.77 = 42,576.62/x
  3. Step 3: Cross multiply
    66,436.79x = 91,659.77 × 42,576.62
  4. Step 4: Simplify right side
    66,436.79x = 3,902,563,212.84
  5. Step 5: Solve for x
    x = 3,902,563,212.84/66,436.79
  6. Step 6: Final answer
    x = 58,740.99

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.